An investigator wanted to determine the effect of egg consumption on cholesterol levels. She randomly assigned one group of participants to consume three eggs per day for three weeks and another group of participants to not include eggs in their diet. She tested the cholesterol levels of both the groups before and after the three weeks. This type of study is called a(n) .

Which expression is equivalent to 5r674 pression is equivalent to see lo 5r614) 4r322,4 ) 5 ( 2 5t5 |

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.